This document provides definitions and examples of common mathematical formulas used to calculate perimeter, area, and volume. It defines a formula as a general mathematical statement or rule, and lists the formulas needed to find the perimeter of shapes like rectangles and circles, as well as the area of rectangles, triangles, and circles. Finally, it provides the formulas for finding the volume of rectangular prisms and other types of prisms.

1. Formulas

2. Definition: A general mathematical statement, equation, or rule.

3. Working w/ formulas Formulas are frequently needed for word problems.

4. Working w/ formulas Often formulas are given.

5. Formulas to know Perimeter Area Volume

6. Perimeter P=Sum of all the sides P=2 r (circle)

7. Area A = lw (rectangle) A = ½lw (triangle) A= r 2 (circle)

8. Volume V=lwh (rectangular prisms) V=Bh (other prisms)